mr, pink ward/oracles, hard cc, brains, tankyDPS, aoes, skill shots. once you figure her out anything shuts her down. don't over extend, don't think you can take her one v one, and don't try to duke it out, use any cc you have, make sure not to lose sight of her, and don't feed her. That is really all it takes. Shes really weak in ranked at the moment, either they waste a ban one her and you giggle because ____ isn't banned and you can roll them (skarner, kassadin, Morg, Shaco, Rammus, Shyvana, Gragas(ap), or garen, etc. are not banned) or you giggle because someone is playing her and you know what to do against her and its effectively a 4.5v5. Unless she vastly out skills/plays you she's getting no where fast, trust me. tho with the recent spell vamp nerf she does start with more spell vamp then some champs can even get soo I may be a bit under-informed.